Look at the *VIA* AC97 drivers to download at VIA's website or www.download.com SEARCH for VIA AC97 AUDIO on www.google.com -- The brains of the motherboard "chipset" of the 1247 is a VIA MP3 (MP4 AC97 works too, ignore the message during install if you get one) with the 400mhz AMD K2 on the 1247 presario. The Board actually uses the *VIA* chipset AC97 driver. Don't thank Compaq for this advice, thank CompUSA technicians.